12946231 has 4 divisors (see below), whose sum is σ = 13707792. Its totient is φ = 12184672.

The previous prime is 12946229. The next prime is 12946237. The reversal of 12946231 is 13264921.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12946231 - 2¹ = 12946229 is a prime.

It is a super-2 number, since 2×12946231² = 335209794210722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12946231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12946237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 380755 + ... + 380788.

It is an arithmetic number, because the mean of its divisors is an integer number (3426948).

Almost surely, 2^12946231 is an apocalyptic number.

12946231 is a deficient number, since it is larger than the sum of its proper divisors (761561).

12946231 is an equidigital number, since it uses as much as digits as its factorization.

12946231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 761560.

The product of its digits is 2592, while the sum is 28.

The square root of 12946231 is about 3598.0871306849. The cubic root of 12946231 is about 234.8088440976.

It can be divided in two parts, 129 and 46231, that added together give a triangular number (46360 = T₃₀₄).

The spelling of 12946231 in words is "twelve million, nine hundred forty-six thousand, two hundred thirty-one".